Method and apparatus for preventing unauthorized use of equipment

• US 6,975,204 B1
• Filed: 07/11/2002
• Issued: 12/13/2005
• Est. Priority Date: 07/11/2002
• Status: Expired due to Term

• Current Assignee: OL Security LLC (Intellectual Ventures LLC)
• Original Assignee: Raytheon Company (Rtx Corporation)
• Inventors: Silver, Alan G.
• Primary Examiner(s): Zimmerman, Brian
• Assistant Examiner(s): YANG, CLARA I
• Application Number:
  US10/193,537
• Time in Patent Office: 1,251 Days
• Field of Search: 340/5.31, 340/426.11, 340/426.12, 340/572.3, 340/5.61, 42/701.1, 713/194, 713/201
• US Class Current: 340/5.31
• CPC Class Codes: F42C 15/42 from a remote location, e.g. for controlled mines or mine fields

Abstract

An apparatus includes a device which is capable of performing a function, and which is responsive to receipt of a predetermined wireless signal for nondestructively rendering itself incapable of thereafter performing the function. In one form of the invention, the capability of the device to perform the function can be restored by the occurrence of a secure event originating externally of the device. In a different form of the invention, the device includes a memory, and information stored in the memory is erased in order to render the device incapable of performing the function.

Claims

1. An apparatus, comprising a device which is capable of performing a function, and which is responsive to receipt of a predetermined wireless signal for nondestructively rendering itself incapable of thereafter performing said function except in response to the subsequent occurrence of a secure event originating externally of said device;

wherein said device includes a weapon and said function involves operation of said weapon, said predetermined wireless signal causing said device to render said weapon inoperative except in response to the subsequent occurrence of the secure event originating externally of said device;

wherein said device includes a memory that stores an operating system of the device, and performs said function in dependence on at least a portion of said operating system in said memory; and

wherein said device is responsive to said wireless signal for automatically selectively erasing all or part of said operating system from said memory, said all or part of said operating system including said portion of said operating system, said device being incapable of regenerating said portion of said operating system by itself, and being incapable of performing said function without said portion of said operating system.

2. An apparatus according to claim 1, wherein said secure event includes receipt by said device of wireless information which includes replacement information that is equivalent to said portion of the operating system of the device and that said device stores in said memory, said device thereafter being capable of again performing said function in dependence on said replacement information in said memory.

3. An apparatus according to claim 2, wherein said wireless signal and said wireless information each include encrypted information.

4. An apparatus according to claim 1, wherein said device is capable of transmitting a wireless status signal which contains status information regarding said device.

5. An apparatus according to claim 4, wherein said device transmits said status signal in response to one of a power-up of said device and receipt by said device of a wireless interrogation signal.

6. An apparatus according to claim 4, wherein said device includes structure responsive to receipt of a predetermined wireless signal for thereafter inhibiting transmission by said device of wireless signals, including said status signal.

7. An apparatus according to claim 4, wherein said status signal includes information which identifies said device.

8. An apparatus according to claim 4, including structure separate from said device which is responsive to transmission by said device of said status signal for determining a current location of said device.

9. An apparatus according to claim 1, wherein said device is operable to check for indications that said device has been tampered with, and is responsive to detection of tampering for nondestructively rendering itself incapable of thereafter performing said function except in response to the subsequent occurrence of said secure event originating externally of said device.

10. An apparatus according to claim 1, wherein said device is operable to check for a lack of receipt by said device within a predetermined time interval of a valid wireless signal intended specifically for said device, and is responsive to detection of the lack of a valid wireless signal during said predetermined time interval for nondestructively rendering itself incapable of thereafter performing said function except in response to the subsequent occurrence of said secure event originating externally of said device.

11. An apparatus comprising a device which includes:

a memory that stores an operating system for the device;

a processor capable of performing a function in dependence on at least a portion of the operating system of the device;

structure responsive to receipt of a predetermined wireless signal for nondestructively rendering itself incapable of performing said function by automatically selectively erasing all or part of said operating system from said memory, said all or part of said operating system including said portion of said operating system said device being incapable of regenerating said portion of said operating system by itself, and being incapable of performing said function without said portion of said operating system; and

wherein said device includes a weapon and said function involves operation of said weapon, said predetermined wireless signal causing said device to render said weapon inoperative.

12. An apparatus according to claim 11, wherein after erasing said portion of the operating system from said memory, said device is incapable of performing said function except in response to the subsequent occurrence of a secure event originating externally of said device.

13. An apparatus according to claim 12, wherein said secure event includes receipt by said device of wireless information which includes replacement information that is equivalent to said portion of the operating system and that said device stores in said memory, said device thereafter being capable of again performing said function in dependence on said replacement information in said memory.

14. An apparatus according to claim 13, wherein said wireless signal and said wireless information each include encrypted information.

15. An apparatus according to claim 11, wherein said device is capable of transmitting a wireless status signal which contains status information regarding said device.

16. An apparatus according to claim 15, wherein said device transmits said status signal in response to one of a power-up of said device and receipt by said device of a wireless interrogation signal.

17. An apparatus according to claim 15, wherein said device includes structure responsive to receipt of a predetermined wireless signal for thereafter inhibiting transmission by said device of wireless signals, including said status signal.

18. An apparatus according to claim 15, wherein said status signal includes information which identifies said device.

19. An apparatus according to claim 15, including structure separate from said device which is responsive to transmission by said device of said status signal for determining a current location of said device.

20. An apparatus according to claim 11, wherein said device is operable to check for indications that said device has been tampered with, and is responsive to detection of tampering for nondestructively rendering itself incapable of thereafter performing said function.

21. An apparatus according to claim 11, wherein said device is operable to check for a lack of receipt by said device within a predetermined time interval of a valid wireless signal intended specifically for said device, and is responsive to detection of the lack of a valid wireless signal during said predetermined time interval for nondestructively rendering itself incapable of thereafter performing said function.

22. A method of operating a device capable of performing a function, including the step of responding to receipt by said device of a predetermined wireless signal by nondestructively rendering said device incapable of thereafter performing said function except in response to the subsequent occurrence of a secure event originating externally of said device;

wherein said device includes a weapon and said function involves operation of said weapon;

wherein said step of rendering said device incapable of performing said function includes the step of rendering said weapon inoperative except in response to the subsequent occurrence of the secure event originating externally of said device;

and further comprising;

storing an operating system for the device in a memory;

performing said function in dependence on at least a portion of said operating system in said memory;

carrying out said step of rendering said device incapable of performing said function by selectively erasing all or part of said operating system said all or part of said operating system including said portion of said operating system;

preventing said device from being capable of regenerating said portion of said operating system by itself; and

preventing said device from being capable of performing said function without said portion of said operating system.

23. A method according to claim 22, including the steps of:

effecting the occurrence of said secure event by transmitting to said device wireless information which includes replacement information that is equivalent to said portion of said operating system;

storing said replacement information in said memory; and

causing said device to thereafter be capable of again performing said function in dependence on said replacement information in said memory.

24. A method according to claim 22, including the step of configuring said device to be capable of transmitting a wireless status signal which contains status information regarding said device.

25. A method according to claim 24, including the step of responding to receipt by said device of a predetermined wireless signal by thereafter inhibiting transmission by said device of wireless signals, including said status signal.

26. A method according to claim 25, including the steps of:

checking for indications that said device has been tampered with; and

responding to detection of tampering by nondestructively rendering said device incapable of thereafter performing said function.

27. A method according to claim 25, including the steps of:

determining whether said device has received within a predetermined time interval a valid wireless signal directed specifically to said device; and

responding to the lack of receipt of a valid wireless signal during said predetermined time interval by nondestructively rendering said device incapable of thereafter performing said function.

28. A method according to claim 22, including the steps of:

checking for indications that said device has been tampered with; and

responding to detection of tampering by nondestructively rendering said device incapable of thereafter performing said function except in response to the subsequent occurrence of said secure event originating externally of said device.

29. A method according to claim 22, including the steps of:

determining whether said device has received during a predetermined time interval a valid wireless signal directed specifically to said device; and

responding to detection of the lack of a valid wireless signal by nondestructively rendering said device incapable of thereafter performing said function except in response to the subsequent occurrence of said secure event originating externally of said device.

30. A method of operating a device which includes a processor and a memory, including the steps of:

storing an operating system for the device in said memory;

configuring said processor to be capable of performing a function in dependence on at least a portion of said operating system in said memory; and

responding to receipt by said device of a predetermined wireless signal by nondestructively rendering said device incapable of performing said function, including the steps of;

selectively erasing all or part of said operating system from said memory, said all or part of said operating system including said portion of said operating system;

preventing said device from being capable of regenerating said portion of said operating system by itself;

preventing said device from being capable of performing said function without said portion of said operating system;

wherein said device includes a weapon and said function involves operation of said weapon; and

wherein said step of rendering said device incapable of performing said function includes the step of rendering said weapon inoperative.

31. A method according to claim 30, wherein said step of preventing said device from being capable of performing said function is subject to the step of permitting said device to perform said function in response to the occurrence of a secure event originating externally of said device.

32. A method according to claim 31, including the steps of:

effecting the occurrence of said secure event by transmitting to said device wireless information which includes replacement information;

storing said replacement information in said memory; and

causing said device to thereafter be capable of again performing said function in dependence on said replacement information in said memory.

33. A method according to claim 30, including the step of configuring said device to be capable of transmitting a wireless status signal which contains status information regarding said device.

34. A method according to claim 33 including the step of responding to receipt by said device of a predetermined wireless signal by thereafter inhibiting transmission by said device of wireless signals, including said status signal.